Centrifugal machine



J. L. HILLER.

CENTRIFUGAL MACHINE.

APPLICATION FILED FEB. 26, 1919.

1,367 ,046, Patented Feb. 1, 1921.

3 SHEETS- SHEE'I I.

A TTORNE Y.

PATENT omce.

JOSEPH L. KILLER, OF MATTAPOISETT, MASSACHUSETTS.

CENTRIFUGAL MACHINE.

Specification of Letters Patent.

Patented Feb. 1, 1921.

Application filed February 26, 1919. Serial No. 279,332.

To all whom it may concern:

Be it known that I, J OSEPH' L. HILLER, a

citizen of the United States, residing at Mattapoisett, in the county of Plymouth and State of Massachusetts, have invented cer tain new and useful Improvements in Centrifugal Machines, of which the following is a specification.

The principal objects of the present invention are first, in the continuous operation of the machine, to permit the solid matei'ial to remain quiescent on the filtering or permeable member and to discharge the treated solid material without scarifying that member; second, to provide improved means whereby the centrifugal process of treatment can be successfully made continuous; and third, to provide reliable, durable and eflicient mechanism for effecting dis- 1 charge of the treated material while the ma chine is in operation.

The invention will be claimed at the end hereof but will be first described in connection with the embodiment of it chosen from among other forms of embodiment for the section on the line of Fig. 1, and

v Fig. 3, is a development of cam mechanism hereinafter described.

There is a circle of basketsor carriers 1, each oscillatable about an upright axis or, and each having ends 2'and 3, and a vertical concavo-convex wall 4, connecting the ends and disposed toone side of the axis of oscillation w. The vertical wall 4, is permeable and for that purpose its central portion 5, is shown as perforated and lined with a screen or filtering material 6. This vertical wall 4, is provided at one margin with a flange 7, for engagement with 9. margin 8, of the vertical wall of an adjoining carrier or basket so as topermit in effect,

a continuous wall. 9, is a rotatingframe upon which the carriers 1, are mounted, as by pintles 10, for oscillation about their individual axes w. The frame 9, is shown as suspended from a fixed housing 11, by means of a ball and socket joint 12, and the frame 9, is shown as rotated by an electric motor 13. Upon this frame 9, is mounted a second frame 16, provided with a feed-channel 14,

having spouts 15, of which two are shown, although the number is not material and these spouts depend so as to discharge in the 'dlIGClllOIl of the baskets or carriers 1. Frame 16, rests upon the upper annular ring of frame 9, so as to slide on it, as shown at the right in Fig. 2. The frame 16, is shown as provided with gear teeth 17 which mesh with a pinion 18, carried by the housing 11', and driven by a' pulley 19, when it is desired to rotate the frame 16, at a different speed or in a different direction from the frame 9. In some cases it may be desirable not torotate the frame 16. There are means, operable while the frame 9 is rotating, and adapted to intermittentlyturn each carrier 1, about its axis of oscillation w, in one direction to present the concave face of its vertical wall 4, to the axis of rotation of the frame 9, for feed, and in the other direction away from said axis of rotation, for discharge. These means are shown to consist of a cam groove and follower mechanism of which the cam groove element ison the frame 16, and the follower element or ele-' ments are carried by the frame 9, so that cam groove 20-21, 20 being deeper, formed in the under face of the frame 16, and of double or mate followers 22 and 23, projecting from theto end of each basket or carrier 1 and of w ich 22 projects higher than 23.. At certain places around the machine the casing 24 carried by the frame 16, is continuous and directs relatively fluid matter into suitable receptacles 25, as shown 1 at the right hand-side-in Fig. 2; and in other places the casing 24, is cut away to permit of the escape of relatively solid matter over a guide 26, as shown at the left hand side in Fig. 2.

For the sake of a-description of the mode of operation it will be assumed that both frames 9 and 16, are'rotating with a difference in speed between them, for example, it may be assumed that frame 9, is rotating counter-clockwise and that frame 16, is rotating at a slower speed in the-same direction or is rotating clockwise or is standing still. Those of the baskets or carriers 1, which are receiving material from the chute 15, and those of the baskets or carriers 1,

in which the material is being subjected to centrifugal treatment have the concave faces of their walls 4, presented toward the axis of rotation of the frame 9. and while thev have a circular motion of translation thev are otherwise at rest. One way of accomplishing this will now be described. The baskets tend to turn the concave faces of their walls 4, away from the center of totation of the frame 9. because of the distribution of their weight and the weight of their load eccentrically in respect to their axis at, and this tendency 1S restrained ov the action of the trailing follower 22. upon the outer wall of the cam groove 20.

Those of the baskets or carriers 1. which are discharging their treated contents are turned, in the present instance. clockwise about their axis 00, for example. through 200, more or less, so as to present their concave faces away from the axis of rotation of the frame 9. When this is done the cam grooves 20 and 21. cooperate with the followers 22 and 23, as shown in Fig. 5. from which it is evident that the loops in the cam grooves acting on the mate followers insure positive movement of each basket or carrier 1, and in that figure the arrows connect the mate followers. a. e.. the followers of a single basket or carrier. and by their positions indicate steps in the turning movements of'one basket or carrier l. Under the influence of centrifugal action and as a basket or .carrier is turned in the manner described about its axis x. the contents roll off the permeable portion of the vertical wall 4;. and escape without scarifying the filtering material 6.

I claim:

1. In a centrifugal machine the combination of carriers each oscillatable about an upright axis and each having a vertical concavo-convex wall the central portion of which is permeable and a marginal portion of which is not permeable and onto which the contents roll before discharging to avoid scarifying the permeable portion. a rotating frame upon which the carriers are mounted for. oscillation about their individual axes, and means operable while the frame is in rotation and adapted to turn each carrier about its axis of oscillation to present the concave face of its wall toward the axis of rotation of the frame for feed and for centrifugal action and away from said axis of rotation for discharge, substantially as described.

2. A centrifugal machine comprising the combination of two frames. means for imparting a speed differential of turning movement between the frames. one frame being provided with a cam, and permeable carriers turnably mounted on one of said frames and each provided with a cam follower, whereby the carriers are turned about heir individual axis to present one of their :aces alternateiv toward and away from the LXIS or :otation or the frame which carries them.

. ii centrifugal machine comprising the ombination or two frames. means for imiarting L s eed differential of turning novement between the frames. one frame beng provided with a cam. and carriers oslllilEElDlV mounted on the other frame and iaving a vertical concavo-convex permeable vail arranged to one side of the axis of os-- ".lliltlOIl and having at their top ends a am follower. substantially as described.

, in a centrifugal machine the combinaiion or two frames. means for imparting a =need differential of turning movement beween the frames. one frame being provided vith a cam groove. a circle of oscillatable illIlQlS mounted on the other frame and each raving its weight eccentrically distributed 'n respect to its axis of oscillation to cause t to tend to turn into discharging position, ind a follower for each carrier adapted to trail on the outer wall of the cam groove tnCl restrain said tendency. substantially as iescribed.

in a centrifugal machine the combina- 'ion of two frames; means for imparting a Deed differential of turning movement bewveen the frames. one frame being provided Vltll two cam grooves, each having a loop, a *ircie of oscillatable carriers mounted on the ither frame and each having two followers idapted to work in said cam grooves to osailate the carriers. substantially as deecribed.

in a centrifugal machine the combina- ;on or a circle of carriers respectively idapted to keep their contents independent trom the contents of the others and each osailatable about an upright axis and each having a concavo convex wall the central DOI'E1OI1 of which is permeable and a margin of which is not permeable, said walls pro- IdGCl marginally with means for preventing escape of material in feeding between adjoin- .ng carriers. a rotating frame upon which the carriers are mounted for oscillation, means operatable while the frame is rotating and adapted to intermittently turn each carnor in one direction to present the concave face to the axis of rotation of the frame for feed and for centrifugal action and in the other direction for discharge, and a feeder arranged to discharge radially toward the con- 'ave faces of the walls, substantialy as described.

In a centrifugal machine the combination of a circle of carriers respectively adapted to keep their contents independent from the contents of the others and each oscillatable about an upright axis and each ided margmally with means for preventing escape of material in feeding between adjoining carriers, a rotating frame upon which the carriers are mounted for oscillation, means operatable While the frame is rotating and adapted to intermittently turn each carrier in one direction to present the concave face to the axis of rotation of the frame for feed and for centrifugal action and in the other direction for discharge, and

a feederarranged to discharge radially to- 10 Ward the concave faces of the Walls, substantially as described.

JOSEPH L. HILLER. 

